Universal rolling-mill.



H. SACK, DEGI).

A. SACK, ADMINISTRATBIX.

UNIVERSAL ROLLING MILL.

APPLIOATION FILED NOV. so, 1908.

Patented N0v. 2, 1909.

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H. SAGK, DEGD. A. SACK, ADMINISTRATRIX.

UNIVERSAL ROLLING MILL.

APPLICATION FILED Nov. 30, mos.

Patented Nov. 2, 1909;

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H. SACK, DEGD.

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UNIVERSAL ROLLING HILL.

APPLIOATION FILED NOV. 30, 1908.

Patented Nov. 2, 1909.

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.q/vitneooeo H. SACK, DECD.

A. SACK, ADMINISTKATBIX.

UNIVERSAL ROLLING MILL.

APPLICATION FILED NOV. so, 1908.

939, 1 72, Patented Nov. 2, 1909.

6 SHEETS SHEET 4.

Inventor: Y 7 E by Attjm H. SACK, DEGD. A. sAbK, ADMINISTRATRIX.

UNIVERSAL ROLLING MILL.

APPLICATION FILED NOV. so, 1908.

Patented Nov. 2, 1909.

6 SHEETS-SHEET 5.

Attest: "inventor:

A ttyvx H. SACK, DEGD.

A. SACK, ADMINISTRATRIX.

UNIVERSAL ROLLING MILL.

APPLICATION FILED NOV.30, 1908.

Patented Nov. 2, 1909.,

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In ventor M Ma UNITED STATES- PATENT OFFICE.

HUGO SACK, 0F DUSS ELDORF, GERMANY; ADELHEIIID SACK ADMINISTRATRIX OFSAID HUGO-SACK, DECEASED.

UNIVERSAL ROLLING-KILL.

Specification of Letters Patent.

Patented Nov. 2, 190 9.

Application filed November 30, 1908; Serial No. 465,414.

To all whom it may concern:

Be it known that I, Htioo SACK, a subject of the Emperor of Germany,residing at Dusseldorf, Rhenish Prussia, Germany, have invented certainnew and useful Improvements in Universal Rolling-Mills, of which thefollowing is a specification.

This invention is a universal mill for rolling girders, comprising twohorizontal and two vertical rolls arranged in the same plane, meansbeing provided whereby the adjustment cat the horizontal rollssimultaneously shifts the vertical rolls.

The present mill embodies specific improvements on that described andclaimed in my copending application Ser. No. 341,142, filed October 29,1906,

Referring to the accompanying drawing: Figure 1 is a front elevation ofthe mill, partly in longitudinal vertical section; Fig. 2 is atransverse vertical section of the mill, with the posit-ion of therollsiudicated by dotted circles; Fig. 3 is a side elevation of themill; Fig. 4 is a horizontal section, in

plan; Fig. 5 is a perspective view of one of the checks which carries avertical roll; Fig. 6 is a perspective View of the carrier for the lowerhorizontal roll, apart from the mill and Fig. 7 is a front elevationshowing a portion of the beams which support the mill, the carrier forthe lower roll, the; checks for the two vertical rolls and the lowersetting rail for shifting the vertical rolls.

The frame of the mill" comprises two spaced rigid stands 1, havinguideways which are closed at the top an bottom. These stands areadjustably supported on and normally bolted to longitudinal foundationbeams or sills 2. The upper ends of the two stands are connected andheld rigidly in position by longitudinal tie-bars 3.

The upper and lower horizontal rolls 4, 5 are journaled at their ends inbearings 6 which are supported by and longitudinally adjustable in upperand lower carriers 7, 8.

These carriers extend entirely across the mill between the stands andhave reduced ends 9, 10 which enter he guide-ways. One of theroll-carriers is vertically adjustable in the guide-we s. In the millillustrated, the upper 'ro l-carrier is vertically adjusted by screws11, working in the closed up er ends of the stands and driven, throngworm-gears, by an electric motor 12. The lower roll-carrier is rigidlysupported, its ends 10 resting on the closed lower ends of the stands.Each ofthe vertical rolls 13, 14 is journaled at its upper and lowerends in a laterally-movable chock 15, having a reduced end or tail-piece16 which enters the guide-way of one stand. At each side of each check15 is an integral vertical plate 17, the upper and lower edges 18 ofwhich are flat and converge toward the tail-piece 16, each plate 17 thusconstituting a wedge. Each chock has greasecups 19 for lubricating theroll-journals, and rigid outwardly-cuived guide-plates 20 for directingthe bar t6 be rolled. The greasecups illustrated comprise circular'ringsreceiving disk plungers forced in by nuts on a central stud-bolt.

Adjustably attached to the lower and upper roll-carriers 7, 8,respectively, are do licate members 21, 22, termed setting mi 9, havinginclined flat edges which are arranged to bear upon the upper and loweredges 18 ofthe wedge-plates 17. When the, upper roll-carrier is forceddownward to bring the horizontal rolls into closer proximity, thesetting rails 21, 22 bear on the wedge-members '17 of the checks 15 andthereby simultaneously force these checks and the vertical rolls intocorrespondin closer proximity, maintaining the desire form of the passbetween the four rolls. The lower setting-mi? 21 is supported andvertically adjusted by screws 23, resting on the lower roll-carrier 8.The upper settingrail 22 is adjustably supported byscrews 24 andcottered bolts 25 depending from the upper roll-carrier 7.Bothsetting-rails are horizontally adjusted by set-screws 26,

threaded into the ends of these rails and bearing against shoulders onthe roll-carriers. The setting-rails shown in Fig. 1: are firmly held inadjusted position on the rollcarriers by bolts passin through verticalslots 27 in the rails an screwed into the roll-carriers. Thesetting-rail shown in 7 has depcndin slotted lugs 27 which receiveclamping olts.

' The yarious elements thus far described, aside from the standswithclosed upper ends are substantially those of the mill described andclaimed in my specified 'rior a plication. The improvements whic are tesubject-matter of the present ap lication comprise means for renderingt e mill more rigid; for supporting the upper roll-carrier;

for adjusting the bearings of the upper roll; and for guiding the blank.

In the mill described in my prior application, the vertical rolls areheld in position to resist the pressure of the blank by the inclinedfaces 18 of the. wedge-plates 17, hearing against the setting rails 21,22. The vertical component pressures on the uiderails are very great, sothat the vertica rolls inevitably yield to asmall but undesirableextent. In the present mill means are pro vided for holding the chocksof the vertical rolls rigidly in any adjusted position. One such meansis illustrated in Fig. 3, consisting of two screw or other jacks 28which bear against the end 29 of the wedge-plate 17. Another equivalentmeans is illustrated in Fig; 4, consisting of a pair of hydraulic rams28 which bear directly a ainst the tail-piece 16, the ram-cylindersbeing carried by a cross-head 29 bolted to the stand. When screw jacksare used, the vertical rolls are suitably adjusted toward each otherafter each pass, either by hand or by power, and the screws are thenforced firmly against thetail-pieces of the chocks, maintaining them inposition during the rolling. If desired, especially with thin sections,additional pressure can be brought on the flanges only, during the laststages of the rolling, by first tightening all four rolls, setting upthe screw-jacks 28, and thereafter loosening the adjusting-screws ,ofthe upper horizontal roll. The web-thickness is thus preserved while theflanges are made thinner.

When the hydraulic rams 28 are used, their cylinders are connected to asource of fluid under low pressure, just sufficient to overcome thefriction of the glands and bring the rams in contact with the chocks.Check-valves in the supply -pipes prevent efliux of the water and retainthe rams in position against the chocks during the rollmg. a

When the mill is employed for finishing and the bar requires to bepassed but once through the rolls, no adjustment during rolling isnecessary and the roll-chocks may be rigidly tied together. Tie-rods 30for connecting the chocks are shown in Figs. 1 and 2, nuts on theirthreaded ends engaging lu s 31 on the chocks. By using these tierods,preferably in addition to the screwjacks or rams previously described,finished shapes of accurate dimensions and weight may be rolled.

In order to revent the vertical rolls from shiftin out o the lane of thepass during the rolling, the we ge-plates 17 of the rollchocks are,extended at their wider ends to provide ledges 32 which embrace andclosely fit the vertical outer faces of the horizontal roll-carriers 7,8, as shown in Fig. 1. These ledges 32, with the tail-pieces 16,entirely prevent any movement of the chocks or verrocked on its ticalrolls in the line of rollin Yet the chocks may be readily remove topermit the vertical rolls to be changed, by simply shifting the stands 1apart, as described in my application filed June 26, 1907, Serial Number380854. Fig. 7 shows the chocks lying on the lower roll-carrier 8, thestands and upper roll-carrier having been removedj Means forcounterbalancing the upper roll 4 and its carrier 7 are illustrated inFigs. 1 to 4,-comprising pairs of vertical rods 33 the up er ends ofwhich bear against the lower side of the carrier, at each of its ends,and hydraulic cylinders 34-each having a piston cross-head 35 whichsupports one pair ofrods.

Means for longitudinally adjusting the bearings 6 of the horizontalrolls in their carriers are shown in Figs; 1 to 4, comprising pairs ofhorizontal shafts 36 having right and left hand screws respectivelyengaging nuts fixed in the bearings and in the adjacent ends of thecarriers. A pinion 37 is keyed to th e middle of each shaft 36. Thepinions;.of the adjacent shafts mesh with worms 38 on a transversehorizontal shaft 39, journaled in the carriers and having squared ends40 to receive a wrench. This adjusting mechanism is omitted from Fig. 6.

Improved means for guiding the blank are shown in Figs. 2, 3 and 4,comprising members 41 which are pivoted to the outer ends of theguide-plates 20. Each member 41 has two arms, one of which, 42, containsan antifriction roller 43 and has a curved end 44, while the other armcarries a rigid lever 45 by which the guide-membermay be ivot. Theroller-guides on the front side 0 the mill may thus be laterallyseparated to receive the blank and ithose on the back side may bebrought closely into contact with it.

I claim:

1. A rolling mill, comprising stands, a no pair of horizontal rolls, avertical roll, a movable chock carryin said vertical roll, means wherebyvertica movement of one horizontal roll laterally shifts said chock, andsupplemental means for resisting the lateral rolling pressure on thevertical roll. 1

2. A rolling mill, comprising stands having guideways, a pair ofhorizontal rolls, horizontal-roll carriers havin ends in said guideways,one of said carriers vertically adjustable, a pair of vertical rolls,movable chocks carrying said vertical rolls, means whereby verticalmovement of one of said carriers laterally shifts said chocks, andsupplemental means for resisting the lateral rolling pressure on thevertical rolls.

3. A rolling mill, comprising stands having guideways, a pair ofhorizontal rolls, horizontal-roll carriers having ends in said guidewas, one of said carriers vertically 130 adjustab e, a pair of verticalrolls, movable chocks carrying said vertical rolls, means wherebyvertical movement of one of said carriers laterally shifts said ehocks,comprising. complementary members respectively on said carriers and saidchocks, said members having lnclined abutting faces, and adj'ustablesupports bearing against the outer ends of said chocks.

4-. A rolling mill, comprising stands having guideways, a pair ofhorizontal rolls, horizontal-roll carriers havin ends in saidguide'ways, one of said carriers vertically adjustable, a pair ofvertical rolls,movable chocks carrying said vertical rolls, meanswhereby vertical movement of one of said carriers laterally shifts saidchecks, compris ing complementary members respectively on said carriersand said chocks, said members having inclined abutting faces, adjustablesupports bearing against-the outer ends of said chocks, and tie-rodsconnecting said checks.

5. A rolling mill, comprising stands having guideways, a pair ofhorizontal rolls, horizontal-roll carriers having ends in saidguideways, one of said carriers vertically adjustable, a pair of vertical'rolds, movable 1 checks carrying said vertical rolls, and

means whereby vertical movement of one of said horizontal-roll carrierslaterally shifts said chocks, comprising setting-rails'on said carriersand wedge-plates on said chocks, said wedge-plates and setting-railshaving inclined abutting faces and said wedgeplates having portionswhich extend outward over said carriers to prevent the chocks fromshifting in the line of rolling.

6. A rolling mill, comprising stands having guideways, a pair ofhorizontal rolls, horizontal-roll carriers having ends in saidguideways, roll-bearings longitudinally ad- I ustable in said carriers,means for vertically adjusting the upper carrier, means for supportingand counterbalancingsaid upper carrier, a pair of vertical rolls, chockscarrying said vertical rolls, and-means directly actuated by verticalmovement of said upper carrier constructed and arranged to laterallyshift said chocks.

7. A rolling mill, comprising stands, a

7 pair of horizontal rolls, roll-carriers extending between said stands,roll-bearings supported and longitudinally movable 'm each carrier, andmechanism for adjusting said bearings, having portions engaging said"chock and laterally movable thereon.

In testimon whereof, I aflix my signature in presence 0 two witnesses.

HUGO SACK.

Witnesses EUGENE A. BYRNEB, G. E. Moons.

